# Cogni vs EOS M400 EN Training

The clearest difference is in-app purchases: EOS M400 EN Training at none against Cogni's 9. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Cogni sells 9 in-app purchases, starting at $4.99 per month. EOS M400 EN Training asks for nothing beyond the download.

## The numbers

| Metric | Cogni | EOS M400 EN Training |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.7K ratings)](https://appshunter.io/ios/app/cogni-ai-flashcards-and-notes/id6737768905/reviews)** | — |
| Number of ratings | **1.7K** | — |
| Positive reviews | 35.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | — |
| Monetization | Freemium | — |
| Size | 75 MB | 598 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | +4 | 4+ |
| Developer | [COGNIFLY LTD](https://appshunter.io/developer/1808620132) | [EOS Singapore PTE LTD](https://appshunter.io/developer/1761117058) |

## What reviewers say

### Cogni

[App page](https://appshunter.io/ios/app/cogni-ai-flashcards-and-notes/id6737768905)

This app uses AI to generate flashcards from various sources like PDFs, notes, or audio. It employs spaced repetition for efficient memorization and allows importing existing decks. Study notes can be generated alongside cards, and a library of pre-made decks is available.

**Highlights:** AI flashcard generation, FSRS spaced repetition, Anki deck import, Notes alongside cards, Offline study, Pre-made deck library, Cross-platform sync

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Monthly | $7.99 | per month |
| Premium Monthly | $14.99 | per month |
| Premium Annual | $19.99 | per year |
| Premium Annual | $24.99 | per year |
| Premium Annual | $29.99 | per year |
| Premium Annual | $49.99 | per year |
| Lifetime Premium | $69.99 | one-time |
| Premium Lifetime | $99.99 | one-time |

**What reviewers like**

- 👍 Great app for memorizing and growing recall skills
- 🚀 Lifesaver for challenging, memory-heavy subjects like med school
- 👍 Sleek and user-friendly interface, no distractions

**What reviewers complain about**

- 🐛 Locked up referring to an upgrade page, couldn't continue using the app
- 🐛 Not easy to use, inaccurate for Spanish language
- 🐛 Desktop flashcards deck won't sync with mobile, forcing duplicate work

**Reported bugs**

- App no longer available after paying for annual subscription
- Occasional crashes

**Requested features**

- Integrate ChatGPT or Claude for automatic card creation
- Add sub-decks for larger decks that need more review
- Improve algorithm for hard/again ratings to better target struggling cards
- Add subsections for decks to study different sections separately


### EOS M400 EN Training

[App page](https://appshunter.io/ios/app/eos-m400-en-training/id6743739593)

**In-app purchases:** none


## Frequently asked questions

### Is Cogni free?

Cogni is free to download, with in-app purchases available.

### Is EOS M400 EN Training free?

EOS M400 EN Training is free to download, with no in-app purchases.

### Do Cogni or EOS M400 EN Training have ads?

Neither Cogni nor EOS M400 EN Training shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*